Herbert Valerio actually pointed out to me in PVT that funnily enough
I've actually *forgotten* and *rediscovered* this idiom! =)
http://www.haskell.org/pipermail/libraries/2011-November/017257.html
Cheers!
On Sat, Jan 26, 2013 at 5:43 PM, Felipe Almeida Lessa
felipe.le...@gmail.com wrote:
Felipe Almeida Lessa felipe.le...@gmail.com writes:
A few days ago I decided to hoogle the type of whenJust [2] and what I
discovered is that
import Data.Foldable (forM_)
whenJust = forM_
You can also use for_, if you want to use Applicative instead of Monad.
--
John Wiegley
FP
